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CVE-2021-47688

MEDIUM
5.7
CVSS Score
Published: June 23, 2025 at 12:00 AM UTC
Updated: June 17, 2026 at 04:18 AM UTC
1 product affected across 1 vendorWhiteBeam

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Severity
MEDIUM5.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In WhiteBeam 0.2.0 through 0.2.1 before 0.2.2, a user with local access to a server can bypass the allow-list functionality because a file can be truncated in the OpenFileDescriptor action before the VerifyCanWrite action is performed.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

WhiteBeam· Whitebeam
60%
0.2.0 ≤ v < 0.2.20.2.0
Affected range stops below 0.2.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Source: [email protected]
https://github.com/WhiteBeamSec/WhiteBeam/pull/22
Source: [email protected]
https://github.com/WhiteBeamSec/WhiteBeam/security/advisories/GHSA-3f8r-9483-pfxj
Source: [email protected]
https://github.com/WhiteBeamSec/WhiteBeam/security/policy

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.7MEDIUMmitre
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-696

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